Afl, transferring controlls in a program

what keyword or function transfer control from one part to another part of afl program. When specific condition occure consider if-else, if condition is true then any condition1, if condition is false, lets suppose I want to jump back in given program then what to do ?? (pls make break; and continue; as exceptions)

you can use IIf( ) function to go back to any above function in if-else